1/* 2 * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef CSSFontFaceSource_h 27#define CSSFontFaceSource_h 28 29#include "CachedFontClient.h" 30#include "CachedResourceHandle.h" 31#include "Timer.h" 32#include <wtf/HashMap.h> 33#include <wtf/text/AtomicString.h> 34 35namespace WebCore { 36 37class CachedFont; 38class CSSFontFace; 39class CSSFontSelector; 40class FontDescription; 41class SimpleFontData; 42#if ENABLE(SVG_FONTS) 43class SVGFontElement; 44class SVGFontFaceElement; 45#endif 46 47class CSSFontFaceSource : public CachedFontClient { 48public: 49 CSSFontFaceSource(const String&, CachedFont* = 0); 50 virtual ~CSSFontFaceSource(); 51 52 bool isLoaded() const; 53 bool isValid() const; 54 55 const AtomicString& string() const { return m_string; } 56 57 void setFontFace(CSSFontFace* face) { m_face = face; } 58 59 virtual void fontLoaded(CachedFont*); 60 61 PassRefPtr<SimpleFontData> getFontData(const FontDescription&, bool syntheticBold, bool syntheticItalic, CSSFontSelector*); 62 63 void pruneTable(); 64 65#if ENABLE(SVG_FONTS) 66 SVGFontFaceElement* svgFontFaceElement() const; 67 void setSVGFontFaceElement(PassRefPtr<SVGFontFaceElement>); 68 bool isSVGFontFaceSource() const; 69 void setHasExternalSVGFont(bool value) { m_hasExternalSVGFont = value; } 70#endif 71 72#if ENABLE(FONT_LOAD_EVENTS) 73 bool isDecodeError() const; 74 bool ensureFontData(); 75#endif 76 77private: 78 void startLoadingTimerFired(Timer<CSSFontFaceSource>*); 79 80 AtomicString m_string; // URI for remote, built-in font name for local. 81 CachedResourceHandle<CachedFont> m_font; // For remote fonts, a pointer to our cached resource. 82 CSSFontFace* m_face; // Our owning font face. 83 HashMap<unsigned, RefPtr<SimpleFontData> > m_fontDataTable; // The hash key is composed of size synthetic styles. 84 85#if ENABLE(SVG_FONTS) 86 RefPtr<SVGFontFaceElement> m_svgFontFaceElement; 87 RefPtr<SVGFontElement> m_externalSVGFontElement; 88 bool m_hasExternalSVGFont; 89#endif 90}; 91 92} 93 94#endif 95